Properties of Equality for Real Numbers

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Properties of Equality for Real Numbers
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Properties of Equality for Real Numbers
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Verifying Segment Relationships

• Congruence of segments is reflexive, symmetric,
  and transitive.

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Verifying Angle Relationships

• Supplement Theorem If two angles form a linear
  pair, then they are supplementary angles.
• The sum of the measures of supplementary angles
  is 180.
• The sum of a linear pair is 180.

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Verifying Angle Relationships

• Congruence of angles is reflexive, symmetric, and
  transitive.

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Verifying Angle Relationships

• Angles supplementary to the same angle or to
  congruent angles are congruent.

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Verifying Angle Relationships

• Angles complementary to the same angle or to
  congruent angles are congruent.
• The sum of the measures of complementary angles
  is 90.

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Verifying Angle Relationships

• All right angles are congruent.
• The measure of a right angle is 90.

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Verifying Angle Relationships

• Vertical angles are congruent.

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Verifying Angle Relationships

• Perpendicular lines intersect to form four right
  angles.

90
90
90
90